CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 67,690	$ 57,153
Accounts receivable, net	134,994	129,433
Contract assets	9,585	9,685
Inventories	121,430	120,430
Prepaid expenses and other current assets	6,901	6,828
Income tax receivable	3,650	3,314
Total current assets	344,250	326,843
Property, plant and equipment, net	82,485	87,285
Goodwill	48,555	48,614
Intangible assets, net	19,923	19,710
Operating lease right-of-use assets	19,098	19,522
Deferred income taxes	4,571	5,564
Other assets	2,502	2,752
Total assets	521,384	510,290
Current liabilities:
Accounts payable	90,079	83,229
Line of credit	46,000	20,000
Accrued compensation	24,207	28,931
Accrued sales discounts, rebates and royalties	6,597	10,758
Accrued income taxes	1,027	3,535
Other accrued liabilities	29,046	33,057
Total current liabilities	196,956	179,510
Long-term liabilities:
Operating lease obligations	13,197	13,681
Contingent consideration	0	292
Deferred income taxes	2,477	1,913
Income tax payable	1,054	1,054
Other long-term liabilities	332	539
Total liabilities	214,016	196,989
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.01 par value, 5,000,000 shares authorized; none issued or outstanding	0	0
Common stock, $0.01 par value, 50,000,000 shares authorized; 24,603,638 and 24,391,595 shares issued on June 30, 2021 and December 31, 2020, respectively	246	244
Paid-in capital	309,072	302,084
Treasury stock, at cost, 11,128,717 and 10,618,002 shares on June 30, 2021 and December 31, 2020, respectively	(322,179)	(295,495)
Accumulated other comprehensive income (loss)	(17,347)	(18,522)
Retained earnings	337,576	324,990
Total stockholders' equity	307,368	313,301
Total liabilities and stockholders' equity	$ 521,384	$ 510,290